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High-quality adapter solution with integrated plan-achromatic optics for Zeiss OPMI microscopes with eyepiece tube

Zeiss surgical microscopes have eyepiece and discussion tubes with an internal diameter of 25 mm, a tube size that is not very common. We have developed an eyepiece adapter solution for these microscopes which makes it possible to attach powerful DSLR and system cameras directly to the eyepiece tube in a few simple steps.

Okulartubus Adapterlösung

This way, you can still capture excellent photos and videos even if your microscope doesn’t have a dedicated phototube.

Zeiss OPMI  Fotoadapter (Videoadapter) für Fototubus
LM digital Adapter for photo tube (beam splitter modules)

Thanks to the high level of image quality that is the result of combining a high-quality microscope, a quality adapter and a large-sensor camera, the live image can be displayed in high resolution on a large monitor. This way, you can review and discuss the image or video with colleagues or patients without any limitations. Zeiss also offers special discussion tubes that allow the microscope user to continue using the eyepiece tubes.

The adapter solution is very easy to install: Remove an eyepiece from the eyepiece tube. It has an external diameter of 25 mm:

zeiss eyepiece tubeouter diameter of Zeiss OPMI eyepiece

Next, the internal diameter of the eyepiece tube should be checked again. The best and most accurate method to do this is to use a digital calliper. To hold the eyepiece in place, the eyepiece tube contains a flexible element that adapts to the diameter of the eyepiece. We offer an adapter solution for an internal diameter of 25 mm, which is simply inserted into the eyepiece tube.

25 mm internal diameter

Thanks to its two-part design, our new LM adapter solution also offers the possibility to focus the image:

Two-part design LM digital adapter

Thus, it is now possible to use a wide variety of large-sensor cameras from different brands. DSLR cameras have a very good price-performance ratio and are available from as low as EUR 300. We have compiled further information and offer a camera ranking for microscopy.

If you are interested in this adapter solution, please contact us.



Fitting the microscope to digital single-lens reflex (DSLR), mirrorless interchangeable-lens cameras (MILC ), digital single-lens mirrorless (DSLM) or C-mount cameras is easy with our LM digital SLR adapters, which feature a plan achromatic optical system. Our products make it possible to capture top-quality microscope images. To help you select the adapter that is right for your camera, we have set up an online configurator on our website. You can also email us – ideally with attached photographs of your microscope.

Modern DSLR and single-lens mirrorless (DSLM) offer the latest technology and are generally very well suited for microscopy applications. Most of them can be controlled remotely via PC/Mac. Because of their high sales volumes, they offer an excellent price/performance ratio compared to special-purpose microscope cameras.

Features of top DSLR and single-lens mirrorless cameras (DSLM):
- Large, powerful full-frame sensors (36 x 24 mm)
- Sensor resolution of 61 megapixels or 240 megapixels with Pixel Shift technology
- High light sensitivity (ISO 400,000+)
- Extensive dynamic range (up to 15 aperture stops/f-stops)
- Short exposure times (1/8000 second) up to 1/32,000 seconds using the digital shutter
- 4K Ultra HD  or 8K Ultra HD video function
- Live video capture on external monitors in ultra HD quality

In most cases, these cameras are significantly more powerful than microscope cameras with smaller sensors (1/2" or 2/3"). On our website you will find our current camera recommendations and a camera ranking which is specifically tailored to microscopy applications.

Ordering codeProduct descriptionPricePriceAvailable

LM Digital SLR Adapter with special hard anti-reflection coating, plan achromatic optics for Zeiss OPMI eyepiece tube with 25mm ID

Euro 1690,--
US $ 1791.4
For EU (European Union) VAT (IVA, TVA) not included

New LM Digital Adapter for: Nikon Z9 / Nikon Z8 / Sony Alpha 7R V / Sony Alpha 1 / Sony FX3 Cinema Line / Sony Alpha 9 II (ILCE-9M2) / Sony Alpha 9 / Nikon D6 / Canon EOS R3 / Canon EOS R6 Mark II / Canon EOS R8 / Sony Alpha 7R IV / Canon EOS R5 / Sony Alpha 7S II / Sony Alpha 7S III / Sony Alpha 7R III / Canon EOS R6 / Nikon Z6 / Nikon Z6II / Sony Alpha 7R II / Nikon Z7 / Nikon Z7II / Canon EOS R / Canon EOS Ra (Astro) / Nikon Z5 / Sony Alpha 7C / Canon EOS RP / Sony Alpha 7S / Canon EOS R7 / Leica SL2-S / Canon EOS R10 / Canon EOS 1D X Mark III / Nikon Z50 / Nikon Z30 / Nikon Z fc / Nikon D850 / Canon EOS 1D X Mark II / Nikon D780 / Olympus OM-1 / Sony Alpha 7III / Olympus OM-D E-M1 Mark III / Canon EOS R100 / Sony Alpha 6700 / Nikon D5 / Sony Alpha 6600 / Fujifilm X-H2S / Fujifilm X-S10 / Fujifilm X-E4 / Fujifilm X-Pro3 / Olympus OM-D E-M1X / Sony Alpha 6400 / Sony Alpha 6100 / Sony ZV-E10 / Canon EOS 1D X / Nikon D4s / Olympus OM-D E-M5 III / Canon EOS 90D / Canon EOS 5D Mark IV / Nikon D4 / Nikon D750 / Canon EOS 6D Mark II / Fujifilm X-T4 / Fujifilm X-T3 / Sony Alpha 6300 / Sony Alpha 6500 / Nikon D500 / Nikon D810 / Nikon D800 / Canon EOS M6 Mark II / Nikon D800E / Nikon Df /